Eaton CHF225ST Thermal Magnetic Circuit Breaker - UL Listed
Part Number: CHF225ST
Quick Summary
Eaton CHF225ST is a CH thermal magnetic circuit breaker for residential and light commercial panels. Engineers often confront panel upgrades that disrupt service and risk noncompliance. It is UL Listed under UL 489 and HACR rated, with a 10 kAIC interrupt rating for robust protection. Designed for Type CH Loadcenters, its plug-on mounting and shunt-trip option streamline installation while delivering reliable, code-compliant protection. The unit also offers wire-size flexibility and a compact footprint to support faster commissioning and reduced field rework in industrial environments.
Product Information
Extended Description
CHF225ST Eaton: Eaton CH thermal magnetic circuit breaker,Type CHF plug-on circuit breaker,25 A,10 kAIC,Two-pole,120/240V,CHF,Trip flag, common breaker trip,(1) #14-8 AWG, (2) #14-10 AWG Cu/Al,CHF,Type CH Loadcenters,Shunt trip included
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHF225ST
UPC
786685708386
Product Length/Depth
3.563 in
Product Height
6 in
Product Width
3.5 in
Product Weight
0.75 lb
Warranty
Limited lifetime
Compliances
HACR Rated
Certifications
UL Listed UL 489
Catalog Notes
Solid and stranded wire can be used together.
Used with
Type CH Loadcenters
Type
Type CHF plug-on circuit breaker
Amperage Rating
25 A
Voltage rating
120/240 V
Trip Type
Trip flag
Circuit breaker type
CHF
Shunt trip
Included
Mounting Method
Plug-on
Interrupt rating
10 kAIC
Main circuit breaker
CHF
Wire size
(2) #14-10 AWG Cu/Al (1) #14-8 AWG
Number of poles
Two-pole
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - CHF225ST
Eaton type CH circuit breaker limited warranty June 2024
The CHF225ST uses a plug-on design for Type CHF circuit breakers, enabling quick, secure mounting in CH Loadcenters. This reduces panel assembly time and minimizes wiring errors, delivering measurable productivity gains on installation projects. The device is rated at 25 A and 120/240 V as a two-pole unit with a 10 kAIC interrupt rating, which translates to dependable overload protection for typical branch circuits and improved safety margins in service entrances. Shunt trip included and a visible trip flag provide remote control and rapid fault indication, enhancing protection for critical loads and building automation applications. Solid and stranded wire can be used together, and the specified wire sizes—(2) #14-10 AWG Cu/Al and (1) #14-8 AWG—offer flexible field wiring options while maintaining code compliance. These features collectively reduce rework, simplify stocking, and support quick upgrades in Type CH Loadcenters.
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FAQs
Yes. The CHF225ST is a Type CHF plug-on breaker designed specifically for Type CH Loadcenters, ensuring secure mounting and proper electrical fit. Its two-pole configuration and plug-on mounting simplify retrofits and new installations in CH-series panels, reducing field wiring complexity and minimizing service interruption during upgrades.
The device is a 25 A, two-pole breaker rated for 120/240 V with an interrupt rating of 10 kAIC. It is a Type CHF plug-on breaker, with a trip flag, shunt trip included, and UL Listed to 489. These specs provide reliable overload protection for typical residential and light commercial circuits.
Yes. The CHF225ST supports mixed conductor sizes, with wiring options including (2) #14-10 AWG Cu/Al and (1) #14-8 AWG. Catalog notes confirm that solid and stranded wire can be used together, enabling flexible field wiring while maintaining secure terminations and compliance with applicable standards.
The CHF225ST is UL Listed under UL 489 and HACR rated, which ensures safe operation with heat, arc, and overload protection suitable for controlled loads. These certifications support compliance with electrical codes and provide confidence in performance for residential and light commercial environments, including metering and distribution applications.
The CHF225ST carries a limited lifetime warranty, reflecting Eaton’s confidence in long-term reliability. For maintenance, rely on regular visual inspection of the trip flag and shunt-trip functionality, and reference Eaton’s datasheets for replacement parts or guidance on remote-trip configurations and device testing in accordance with UL 489 requirements.